Sleep, as a biological behavior, mainly occurs because most life forms cannot sustain prolonged continuous movement. They consume energy during activities, and this energy can be recovered through standby waiting, which is essentially sleep.
But now, for Zhang Yanhang, who has already advanced to Fourth Tier, the spiritual energy he usually absorbs can completely replace the biological behavior of sleep to sustain his daily consumption, so naturally, he no longer needs sleep.
Moreover, after entering Fourth Tier, his body has gradually shown signs of energy quantification, effectively forming reproductive isolation with ordinary people.
Of course, this energy quantification does not refer to complete energy quantification. For life forms, the combination of matter and energy is the right path.
